Maytag Washer Error Code d23/F70

The d23/F70 code means the washer has detected a communication failure between the Central Control Unit (CCU) and the User Interface Control (UIC). These two boards must exchange data continuously for the washer to operate. When the signal between them is lost, the washer stops and logs this fault. The issue can stem from a loose cable connection, a damaged harness, or a failed control board.

Clearing the code and unplugging the washer may resolve the error if it was caused by a temporary power disruption or a momentarily loose connection. However, if the underlying cause is a damaged harness or a failed control board, the code will return once the washer tries to operate again. A reset is a good first step but is not a permanent fix if a hardware problem exists.

If the fix is simply reseating a loose cable, there is no parts cost involved. If the UIC or CCU needs to be replaced, parts alone can range from roughly $80 to $250 or more depending on the specific board and where it is sourced. Adding professional labor typically brings the total repair cost to somewhere between $150 and $400. Getting a diagnostic visit from a technician before ordering parts is advisable.

Start by clearing the error code, then unplug the washer from power. Locate the communication cable at the lower connector on the UIC and make sure it is firmly seated. Restore power and run a cycle to see if the error returns. If it does, inspect the full wiring harness for damage and consider testing or replacing the UIC or CCU if the wiring is intact.

The washer will typically not complete a cycle while this error is active, so continued use is not possible until the fault is resolved. There is no immediate safety hazard associated with this code, but you should unplug the unit before inspecting any wiring or connectors. Address the underlying cause before returning the washer to regular service.